Template:Selected anniversaries/April 1
1776: Mathematician, physicist, and philosopher Sophie Germain born. Her work on Fermat's Last Theorem will a foundation for mathematicians exploring the subject for hundreds of years after.
1890: Havelock survives shootout by shooting first.
1891: Inventor Herman Hollerith uses census data to locate Havelock.
1898: Mathematician and anthropologist William James Sidis born. He will become famous first for his precocity and later for his eccentricity and withdrawal from public life.
1933: Ready Kilowatt performs in off-Broadway adaption of Reddy Kilowatt Versus the Travelling Salesman Problem.
1973: Mathematician Robin Farquharson dies. He wrote an influential analysis of voting systems in his doctoral thesis, later published as Theory of Voting.
2016: Mathematician Tan Lei dies. She specialized in complex dynamics and functions of complex numbers, making contributions to the study of the Mandelbrot set and Julia set.